<template>
    <a-layout>
        <a-layout-content :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }">
            <p>
                <a-form layout="inline" :model="param">

                    <a-form-item>
                        <a-button type="primary" @click="handleQuery()">
                            查询
                        </a-button>
                    </a-form-item>
                    <a-form-item>
                        <a-button type="primary" @click="add()">
                            新增
                        </a-button>
                    </a-form-item>
                </a-form>
            </p>
          <p>
            <a-alert
                class="tip"
                message="小提示：这里的分类会显示到首页的侧边菜单"
                type="info"
                closable
            />
          </p>
          <a-table v-if="level1.length > 0"
                   :columns="columns" :row-key="record => record.id"
                   :data-source="level1"
                   :loading="loading"
                   :pagination="false"
                   :defaultExpandAllRows="true">
            <template #cover="{ text: cover }"><img v-if="cover" :src="cover" alt="avatar"/></template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)">编辑</a-button>
                <a-popconfirm
                    title="删除后不可恢复,确认删除?"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="handeldelete(record.id)"
                >
                  <a-button type="danger">
                    删除
                  </a-button>
                </a-popconfirm>

              </a-space>
            </template>
          </a-table>
        </a-layout-content>
    </a-layout>
    <a-modal
            title="分类表单"
            v-model:visible="modalVisible"
            :confirm-loading="modalLoading"
            @ok="handleModalOk"
    >
        <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
            <a-form-item label="名称">
                <a-input v-model:value="category.name" />
            </a-form-item>
            <a-form-item label="父分类">
                <a-input v-model:value="category.parent" />

                <a-select
                        v-model:value="category.parent"
                        ref="select"
                >
                    <a-select-option :value="0">
                        无
                    </a-select-option>
                    <a-select-option v-for="c in level1" :key = "c.id" :value="c.id" :disabled="category.id ===c.id">
                        {{c.name}}
                    </a-select-option>
                </a-select>




            </a-form-item>
            <a-form-item label="顺序">
                <a-input v-model:value="category.sort" />
            </a-form-item>
        </a-form>
    </a-modal>
</template>
<script lang="ts"> import {defineComponent, onMounted, ref} from 'vue';
import axios from 'axios';
import {message} from "ant-design-vue";
import {Tool} from "@/util/tool";

export default defineComponent({
    name: 'AdminCategory', setup() {
        const param = ref();
              param.value = {};
        const categorys = ref();
        const loading = ref(false);
        const columns = [
            {
                title: '名称',
                dataIndex: 'name'
            },
            // {
            //     title: '父分类',
            //     key: 'parent',
            //     dataIndex: 'parent'
            // },
            {
                title: '顺序',
                dataIndex: 'sort'
            },
            {
                title: 'Action', key: 'action', slots: {customRender: 'action'}
            }];

        /**
         * 一级分类树，children属性就是二级分类
         * [{
         *   id: "",
         *   name: "",
         *   children: [{
         *     id: "",
         *     name: "",
         *   }]
         * }]
         */
        const level1 = ref(); // 一级分类树，children属性就是二级分类
        level1.value = [];
        /** * 数据查询 **/
        const handleQuery = () => {
            loading.value = true;
            // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
            level1.value = [];
            axios.get("/category/all").then((response) => {
                loading.value = false;
                const data = response.data;
                if(data.success){
                    categorys.value = data.content;
                    console.log("原始数组：", categorys.value);
                    level1.value = [];
                    level1.value = Tool.array2Tree(categorys.value, 0);
                    console.log("树形结构：", level1);

                }else{
                    message.error(data.message);
                }
            });
        };

        // -------- 表单 ---------
        const category = ref({});
        const modalVisible = ref(false);
        const modalLoading = ref(false);
        const handleModalOk = () => {
            modalLoading.value = true;
            axios.post("/category/save", category.value).then((response) => {
                const data = response.data;
                modalLoading.value = false;
                if(data.success){
                    modalVisible.value = false;
                // 重新加载数据
                    handleQuery();
                }else{
                    message.error(data.message);
                }
            });
        };
        /**
         * 编辑
         */
        const edit = (record : any) => {
            modalVisible.value = true;
            category.value =Tool.copy(record) ;
        };

        /**
         * 保存
         */
        const add = () => {
            modalVisible.value = true;
            category.value = {};
        };

        /**
         * 删除
         */
        const handeldelete = (id :number) => {
            axios.delete("/category/delete/"+ id).then((response) => {
              const data = response.data;
              if (data.success) {
                // 重新加载数据
                handleQuery();
              } else {
                message.error(data.message);
              }
            });

        };

        onMounted(() => {
            handleQuery();
        });
        return {
            level1,
            columns,
            loading,
            param,
            edit,
            add,

            modalVisible,
            modalLoading,
            handleModalOk,
            category,

            handeldelete,
            handleQuery,
        }
    }
});</script>
<style scoped> img {
    width: 50px;
    height: 50px;
}</style>
